What is the L2TPv3 tunnel Protocol Version 3?

L2TPv3 (Layer Two Tunneling Protocol Version 3) is a point-to-point layer two over IP tunnel. This means you can tunnel L2 protocols like Ethernet, Frame-relay, ATM, HDLC, PPP, etc. over an IP network. This can be pretty useful…For example, let’s say you have two remote sites and an application that requires that hosts are on the same subnet.

How to configure an L2TPv3 Ethernet pseudowire?

The configuration of an L2TPv3 pseudowire (with dynamic session establishment) can be broken down into five steps: Step 1. Configure Cisco Express Forwarding (CEF). Step 2. Configure a loopback interface to use as the pseudowire endpoint.

Where does the VLAN go in a L2 network?

In a centralized L2 model, the VLAN on the corporate side are extended to remote branch sites. Wireless clients associated to IAP gets the IP address from the DHCP server running on LNS.

Can You Bridge two remote sites with L2TPv3?

With L2TPv3, it’s no problem to “bridge” two remote sites together, putting them in the same broadcast domain/subnet. L2TPv3 is an IETF standard (RFC3931) that has a separate protocol number (115) and combines some technology from: Cisco L2F (Layer 2 Forwarding) Microsoft Point to Point Tunneling Protocol (PPTP)

Is the Cisco 7500 series compatible with L2TPv3?

On the Cisco 7500 series with distributed CEF (dCEF), in a QoS policy applied to a Frame Relay interface configured for L2TPv3, only the MQC commands match fr-dlci in class-map configuration mode and bandwidth in policy-map configuration mode are supported. (See the task: “Configuring QoS for L2TPv3 on the Cisco 7500 Series Example”.)

Do you need Cisco Express Forwarding for L2TPv3?

Cisco Express Forwarding must be enabled for the L2TPv3 feature to function. The xconnect configuration mode is blocked until Cisco Express Forwarding is enabled. On distributed platforms, such as the Cisco 7500 series, if Cisco Express Forwarding is disabled while a session is established, the session is torn down.

Which is the IETF standard for L2TPv3?

L2TPv3 is an IETF standard (RFC3931) that has a separate protocol number (115) and combines some technology from: The configuration of L2TPv3 is pretty straightforward. Let’s use the following topology: We have two routers, R1 and R2. We’ll configure L2TPv3 on these two routers so that H1 and H2 can reach each other.